Clark has held leadership roles for significant rail and transit projects in the Southwest District. These include the California High-Speed Rail program and the Mid-Coast Light Rail Transit project for SANDAG, serving as the Project Management Consultant (PMC) and he is the Principal-in-Charge. The $2B project includes 11 miles of new double tracking, nearly half on elevated viaduct, with nine stations, extensive retaining walls, and other project features. 

In addition to managing TYLin’s Roads + Highways practice in the Americas, he oversees the firmwide Architectural and Visualization Group, which specializes in architectural design, renderings, and animations for complex bridges and other transportation projects. 

A registered Professional Engineer in California, Clark previously served as a Director of the San Diego Section of the American Society of Civil Engineers (ASCE) and is a member and past President of both the San Diego & Imperial Counties Chapter of the American Public Works Association (APWA) and the San Diego Transportation Development Association (SDTDA). He earned a Bachelor of Science in Architecture and Civil Engineering from Princeton University in Princeton, New Jersey.