Practice Leaders

Geotechnical Engineering

On Man Lau


Mr. Lau has more than 19 years of experience in geotechnical and environmental engineering, soils/earthwork observation and testing, and construction materials testing and inspection. His areas of expertise include investigations for foundations, seismic hazards, slope stability, liquefaction analyses, drainage studies, footing foundation designs...


Also included in his areas of expertise are Settlement evaluations, pavement designs, slab-on-grade design, drilled pier design and construction, pile driving design and construction, expansive soils, corrosive soils, excavation stability, shoring, compaction requirements and volumetric calculations. His projects have included water and wastewater facilities, pipelines, canals, bridges, roadways and highways, schools, hospitals, parks, multi-story buildings, commercial office complexes, airports, energy sites, dams, retaining walls, manufacturing plants, and police/fire/prison sites. Mr. Lau has performed and managed geotechnical engineering and construction materials testing projects in Kern, Tulare, Kings and Fresno counties, and Owens Valley, Antelope Valley, and the Mojave Desert regions of California

Construction Materials Testing & Inspection

Tim Rodriguez


Mr. Rodriguez has over 17 years of experience in materials testing and inspection, providing services encompassing a wide range of work including soils, asphalt, concrete, and steel laboratory testing as well as field inspections of soils, paving, concrete and reinforcing steel. Mr. Rodriguez serves as Construction Services Group Manager for the BSK Livermore office and has a wide range of project management and technical supervision experience for numerous projects throughout the San Francisco Bay Area and Sacramento regions of California.


Mr. Rodriguez has served as a board member for the statewide California Council of Testing and Inspection Agencies, and has extensive experience in many specialized testing applications including ground penetrating radar (GPR) surveys, floor flatness testing, reinforcing steel surveys, pulse-velocity testing of concrete, specialty load testing, fire damage assessments and condition surveys. His wide range of knowledge in multiple disciplines and various building codes coupled with excellent communication skills provides BSK with valued technical support for both our clients and field staff.