Incorporated in 1964, Geotechnical Consultants. GTC supplies consulting services in geotechnical engineering, engineering geology, and hydrogeology, primarily for public infrastructure projects in California. We have applied our expertise in these disciplines to a huge array of projects such as the planning, design, and construction of dams, reservoirs, tunnels, pipelines, roads, bridges, light rail systems, airports, water and wastewater treatment facilities, pump stations, buildings, outfalls, and port facilities.


Contact Details

  City San Francisco , CA
  Zip Code 94111
  Address 500 Sansome Str # 402
  Phone Number (415) 981-9950