Geotechnical Investigation and Design
Site reconnaissance, subsurface investigations, drilling and sampling programs, soil classification, groundwater and corrosion evaluation, and geotechnical design reports.

From the first boring to final construction testing, Golis supports your project with experienced, principal-led engineering.
Site reconnaissance, subsurface investigations, drilling and sampling programs, soil classification, groundwater and corrosion evaluation, and geotechnical design reports.
Spread and continuous footings, slab-on-grade, and deep foundations (driven piles and CIDH) for buildings, bridges, and retaining walls, including settlement and seismic hazard evaluation.
Grading and earthwork recommendations, fill placement and compaction criteria, over-excavation, slope and excavation recommendations, and construction-phase observation.
Soil compaction testing; concrete sampling and field testing (slump, air, temperature, cylinders); infiltration and percolation testing; and laboratory testing through accredited laboratory partners.
Field inspection, documentation, quality control, and resolution of technical issues during construction.
Pavement materials evaluation, concrete and aggregate assessment, and specification compliance based on Caltrans test methods and standards.
Independent review of plans, specifications, submittals, test data, and engineering reports.
Public agencies, utilities, prime engineering firms, construction managers, developers, builders, and contractors.