Sam X. Yao |Senior Principal
Samhas more than 25 years of experience in construction engineering of heavy civil works in marine and underground environments. His expertise includes in-the-wet construction, deep foundation, marine engineering, and concrete technology; and he has authored several publications on the topics. With an international reputation in heavy civil engineering design and consultation, Sam has led and successfully completed design of various civil works, including bridges and tunnels, locks and dams, piers and wharves, seawall and shoreline protection, and excavation shoring. He has also served as an investigator and/or an expert witness for many construction failure cases involving concrete defects, drilled shafts, prestressed concrete piles, jet grouting, slurry walls, bridges, and tunnels.