About Us
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  Robert R. Tyler, P.E., Senior Principal / Area Manager  
 

Robert currently manages operations of Cardno's structural engineering offices in the United States. He received his Bachelor of Science in Architectural Engineering from the University of Texas at Austin in 1979 at which time he joined Cardno. Until 2008, Robert served as an Executive Vice President and headed one of its production groups in the Houston Office before becoming its Chief Operating Officer. Robert was instrumental in opening the firm's Austin office in 2000, and later headed up its efforts in founding Ensight Haynes Whaley, a Historically Underutilized Business (HUB) certified by the State of Texas which was founded to provide a highly qualified minority firm for public and institutional projects.

 
  Wally B. Ford, P.E., Senior Principal / Branch Manager  
 

Wally specializes in high-rise design, having been involved in the design of numerous buildings of more than 25 stories. Wally earned his Bachelor of Science in Civil Engineering degree and Master of Civil Engineering degree from Rice University in Houston, Texas. He is dedicated to education and contributes to the architecture and engineering community by teaching a variety of courses. He served as a lecturer for structural courses in the Architecture Department of Rice University for ten years. Wally and his team recently completed 609 Main, a 48-story office tower in downtown Houston.

 
  John D. Rohrer, P.E., Senior Principal  
 

John received a Bachelor of Science in Architectural Engineering in 1973 from The University of Texas at Austin. John manages a personnel group of engineers and drafting staff which work together continuously to assure high-quality design on each project produced. His work includes the recently completed UTMB Jennie Sealy Replacement Hospital, a major component of the reconstruction of the University of Texas Medical Branch campus that was ravaged during Hurricane Ike.

 
  Ronald Y. Chen, P.E., Principal / Project Director  
 

Ronald joined Cardno in 1984, and became a principal in 2008. He received a Master of Science in Engineering from The University of Texas at Austin in 1981, and a Bachelor of Science in Engineering from National Cheng-Kung University, Taiwan in 1976. Ronald collaborates with a group of engineers and drafting staff to manage project production.

 
  Frank Ah-Loy Lo, P.E., Principal / Project Director  
 

Frank joined Cardno in 1992, and became a principal in 2008. He received a Bachelor of Science in Engineering in 1986 and a Master of Science in Engineering in 1988, both from Texas Tech University. Frank manages a personnel group of engineers and drafting staff which work together continuously to assure high-quality design on each project produced.

 
  Tan Tran, P.E., LEED AP BD+C, Principal / Project Director  
 

Tan joined Cardno in 2000, and was named principal in 2015. He received a Bachelor of Science in Architectural Engineering in 1987 and a Master of Science in Structural Engineering in 1989, both from The University of Texas at Austin. Tan manages an engineering and drafting group to produce high-quality design.