Jerko Kocijan, Ph.D., P.E., G.E.

Jerko Kocijan is a Principal Engineer based in California with more than 15 years of experience focused on managing ground risk through geotechnical site characterization, geologic and seismic hazards assessment, geotechnical, and analysis and design for buildings, infrastructure, transportation projects, ports and waterfront facilities, and nearshore/offshore structures.

Jerko Kocijan is a Principal Engineer based in California with more than 15 years of experience focused on managing ground risk through geotechnical site characterization, geologic and seismic hazards assessment, geotechnical, and analysis and design for buildings, infrastructure, transportation projects, ports and waterfront facilities, and nearshore/offshore structures.


Throughout his career, his continued focus has been on managing ground risk by combining practical field experience, lessons of case histories, and continuously advancing analytical tools. Jerko gathered his broad experience participating in numerous geotechnical design and consulting projects within the United States and North, Central and South America, Europe, Africa, the Middle East, and Asia. In addition to ensuring code compliance, he continuously identifies opportunities for design optimization, and development of geotechnical solutions that are cost-effective, schedule-sensitive, and sustainable. He is experienced in the design-build (D-B), engineer-procure-construct (EPC), and public-private partnership (P3) project delivery methods, including pre-bid design processes and progressive final design.

Recently, Jerko led geotechnical design team for a freeway widening project in California with numerous new bridges and retaining walls with about $1 billion construction cost. Performed within a D-B framework, the project’s accelerated schedule included collection of over 500 Cone Penetration Tests (CPTs) and over 200 borings, adherence to Caltrans and AASHTO standards, and value engineering of the pre-bid design. He also led a multi-firm team that completed a geotechnical and geologic study for an almost 7-mile long 20-ft diameter effluent tunnel in California, with a construction cost of over $600 million. The comprehensive study for the tunnel, which extended through soil and rock and crossed a major fault zone, included over 15,000 feet of soil drilling and rock coring, and advanced in-situ tests. A detailed fault study resulted in multi-million-dollar savings through optimization of special tunnel liner within the fault zone.

Jerko participates in a working group that developed and is updating the MarCom - PIANC Working Group 153 Recommendations for the Design and Assessment of Marine Oil and Petrochemical Terminals. He is also a co-instructor for the ASCE Continuous Education Course on Geotechnical Design of Port Facilities, which is part of the large ASCE series on planning and design of ports.

Contact Jerko Kocijan at This email address is being protected from spambots. You need JavaScript enabled to view it. or +1 805-979-9148.

Career Summary of Jerko Kocijan, Ph.D., P.E., G.E.

  • Specialties: Geotechnical Design and Construction Risk Reduction and Management; Deep Foundations and Ground Improvement; Geotechnical Exploration Programs and Data Synthesis; Design-Build Project Delivery; Transportation, Port, Waterfront and Offshore Structures
  • Practice Areas: Civil Sites, Geotechnical and Geoenvironmental Engineering, Facility Hazards
  • Disciplines: Civil Engineering, Geotechnical Engineering, Structural Engineering
  • Education: Ph.D., Civil Engineering (Geotechnical), University of California, Los Angeles, 2005; M.S., Civil Engineering (Geotechnical) , University of California, Los Angeles, 2002; MEng., Civil Engineering (Structural), University of Zagreb, Croatia, 2000
  • Registration: California Professional Engineer, P.E. C71747; California Geotechnical Engineer, P.E. GE2969