Sam Yao

Senior Principal

510-457-4452

Mr. Yao has 27-years of experience with design and design management of various heavy civil works, including bridges, tunnels, piers and wharves, locks and dams, intakes and outfalls, flood protection structures, coastal protections, and pump stations.  He has served as an investigator and/or an expert witness for many construction failure cases involving concrete defects, drilled shafts, piles, slurry walls, bridges, tunnels, falseworks, seawalls and breakwaters.