Welcome!

Group Delta Consultants, Inc., a geotechnical engineering, materials testing and inspection firm, has offices located in the counties of Orange, Los Angeles, San Bernardino, and San Diego. Since our inception in 1986 we have provided our clients with excellent services while continually exploring a better way to get the job done and provide the best value engineering possible for every job.

The firm has a staff of 80+ highly skilled professionals consisting of civil and geotechnical engineers, engineering geologists, laboratory and field technicians, deputy inspectors, drafting/CADD, and drilling and support personnel specialized in their respective fields.

Our certifications include City of Los Angeles certified Minority Owned Business (MBE) and DGS Certified Small Business Enterprise (SBE). Our laboratories are licensed and/or certified as an approved testing facility by the City of Los Angeles, Caltrans, AASHTO, and Department of State Architect (DSA).

In addition, we have licensed and experienced deputy inspectors and technicians specialized in their respective fields (including concrete, masonry, batch plant, fireproofing, shotcrete, soils, structural steel, non-destructive testing and welding) to provide construction observation and testing services.

Take a moment to browse through our web site to learn more about us, the markets we serve, and the value we deliver to our clients.

 

 

Group Delta is pleased to announce the opening of our newest location in Ontario, California. 

As part of our expansion into the Inland Empire, we have acquired AMEC’s Ontario operation. This acquisition strengthens Group Delta’s asphalt testing services and provides us with a local presence in the Riverside/San Bernardino area.

Our office in Ontario has 15 employees specializing in materials testing and inspection services. The laboratory is certified by AASHTO, DSA, Caltrans, ASTM, CCRL and others. In addition, we now provide a full range of geotechnical investigation and design services.

World's Largest Polysilicon Production Plant Completed!

LDK Solar Co. Ltd, a manufacturer of multicrystalline solar wafers, held a big celebration in early September to recognize the completion of the world's largest polysilicon production plant in Xinyu City, China. More

 

Habitat for Humanity's first four homes dedicated in San Juan Capistrano!

Two years ago, Habitat for Humanity partnered with the city of San Juan Capistrano to build 27 houses to ease the city's affordable-housing shortage. Fourteen of the 27 homes in the Habitat for Heroes and Foundations for Families™ development are being marketed to combat disabled veterans.

Amid smiles, cheers and tears, four families recently attained their dream of home ownership when they were handed the keys to their new brand homes.

Group Delta is proud to have been part of this effort to make their dreams a reality by volunteering our geotechnical design services for this worthy project.

Santa Anita Canyon Rd Slope Repair

Group Delta provided geotechnical recommendations for the repair of storm damage to the supporting ground below roadway of Santa Anita Canyon Road, Arcadia California. The storm damage was caused by heavy rainfall and resulted in the long-term closure of the roadway. The roadway is a two-lane asphalt paved winding mountain road ascending from the valley floor to the Santa Anita Dam & Reservoir.

Project Slideshow

  • 01
    Heavy rains caused damage to the ground supporting a portion of Santa Anita Canyon Road in Arcadia
  • 02
    Portions of the ground supporting the roadway and guard rail were completely washed out
  • 03
    Group Delta recommended the repair of integral ground under the roadway be constructed as a Reinforced Soil Slope (RSS). Excavation of the failed slope in progress as part of repair.
  • 04
    Excavation of the failed slope in progress
  • 05
    Backfill being placed over geosynthetic reinforcement
  • 06
    Construction of Reinforced Soil Slope in Progress
  • 07
    Construction of Reinforced Soil Slope in Progress
  • 08
    View of Repaired Slope
  • 09
    View of Reinforced Soil Slope from bottom of Canyon
  • 10
    View of Repaired Slope
  • 11
    View of Repaired Slope
 

The Los Angeles Unified School District (LAUSD) has selected Group Delta Consultants to provide On Call Geotechnical Engineering Support Services to the Facilities Services Division, Existing Services Branch. We will provide both design and construction phase services, including performing Comprehensive Geotechnical Investigations and Geologic Seismic Hazard Evaluations in accordance with Title 24 of the California Code of Regulations and the CDMG Checklist for the Review of Engineering Geology and Seismology Reports for California Public School, Hospitals and Essential Buildings. Over the past 10 years, Group Delta has provided geotechnical services on over 100 Task Orders for the District , involving the design and construction of new campuses, classroom buildings, parking structures, playgrounds and other facilities. In addition, the firm has also provided materials inspection and tesing services for almost $1 billion of new school construction.

Traylor Frontier-Kemper JV selected Group Delta Consultants to provide geotechnical instrumentation for the Sound Transit University Link Light Rail TBM tunnel in Seattle (Contract U-220). For this project Group Delta will be installing and monitoring measuring instruments, and data acquisition systems for the 2 mile segment from University of Washington station to Capitol Hill station. Construction work is scheduled to begin January 2010.

The Parsons Team which included Group Delta Consultants for geotechnical engineering and materials testing was recently awarded the contract for Project and Construction Management (PCM) for the SR-91 Corridor Improvement Project by the Riverside County Transportation Commission (RCTC). The project which spans roughly 11 miles is expected to include 16 new/replacement bridges, 21 widenings, and associated new tie-back walls, retaining walls, soundwalls, and roadways.

 

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