GMU Geotechnical

Over 50 Years of Engineering Excellence.

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      • Over 50 Years of Engineering Excellence
        949.888.6513
        23241 Arroyo Vista
        Rancho Santa Margarita
        CA 92688
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      • Over 50 Years of Engineering Excellence
        949.888.6513
        23241 Arroyo Vista
        Rancho Santa Margarita
        CA 92688
        • GMU Difference
        • History
        • Key Staff
        • Client List
        • Culture
        • Geotechnical Engineering & Engineering Geology
        • Pavement Engineering
        • Structural Engineering and Civil Engineering
        • Forensic Engineering and Expert Witness
        • Soils, Materials Testing and Inspection
        • Construction Management and Monitoring
        • News
        • Publications
        • Awards
        • Featured Projects
        • Drilled Displacement Columns at Emerald Bay
        • Contact
        • Careers
  • In The News
      • Over 50 Years of Engineering Excellence
        949.888.6513
        23241 Arroyo Vista
        Rancho Santa Margarita
        CA 92688
        • GMU Difference
        • History
        • Key Staff
        • Client List
        • Culture
        • Geotechnical Engineering & Engineering Geology
        • Pavement Engineering
        • Structural Engineering and Civil Engineering
        • Forensic Engineering and Expert Witness
        • Soils, Materials Testing and Inspection
        • Construction Management and Monitoring
        • News
        • Publications
        • Awards
        • Featured Projects
        • Drilled Displacement Columns at Emerald Bay
        • Contact
        • Careers
  • Connect
      • Over 50 Years of Engineering Excellence
        949.888.6513
        23241 Arroyo Vista
        Rancho Santa Margarita
        CA 92688
        • GMU Difference
        • History
        • Key Staff
        • Client List
        • Culture
        • Geotechnical Engineering & Engineering Geology
        • Pavement Engineering
        • Structural Engineering and Civil Engineering
        • Forensic Engineering and Expert Witness
        • Soils, Materials Testing and Inspection
        • Construction Management and Monitoring
        • News
        • Publications
        • Awards
        • Featured Projects
        • Drilled Displacement Columns at Emerald Bay
        • Contact
        • Careers

Western National Group

September 18, 2014 by

GMU has assisted Western National Apartments in the development of numerous apartment complexes throughout South Orange County.  GMU regularly provides geotechnical investigation reports with recommendations for precise grading and building plans, and assists with construction observation and testing support.

Morena Rockfall/Debris Fence

September 15, 2014 by

GMU provided special inspections for the construction of a structural rockfall debris fence in San Diego, California. Special inspections included tie-back and grout observations and reinforced concrete.

Marina Park

September 15, 2014 by

GMU was the lead inspector for the construction of a new marina and sailing/community center in Newport Beach, CA. Key components included stone columns, driven concrete sheetpile walls, structural tiebacks and the construction of a sailing/community center. Special inspections included: tie-back grout, reinforced concrete and structural steel erection and welding. QA/QC observations were also performed during tie-back construction and stone column construction.

Laguna Sands Building Retrofit

September 15, 2014 by

The Laguna Sands retrofit project included the underpinning and reinforcement of an ocean-adjacent foundation and wall system. Special inspection included: reinforced concrete, shotcrete, and structural welding and bolting.

Cow Camp Bridge

September 15, 2014 by

GMU’s team provided special inspection services for the Cow Camp Bridge in Southern Orange County. The bridge is a roughly ¼ mile long bridge spanning the Chiquita Canyon tributary into San Juan Creek. The bridge is a reinforced concrete bridge founded on 8-10 foot diameter concrete mono-piles. GMU worked closely with the construction management team, structural engineers as well as oversight inspectors from the County of Orange. Inspection included reinforced concrete and post–tensioned concrete.

Hilton Garden Inn

September 15, 2014 by

GMU provided all special inspection services for a 5 story hotel in Irvine, CA. The hotel is of podium style construction with 2 levels of reinforced and concrete podium structure supporting 3 stories of wood framed hotel room structure. Special inspections included: reinforced masonry, reinforced concrete, post-tensioned concrete, structural welding and bolting, and shear wall/panel nailing observations.

Bake Parkway /Lake Forest Drive Bridges

September 13, 2014 by

GMU was the lead special inspector and provided all special inspections for three single span bridges over San Diego and Veeh Creeks. GMU worked closely with the design structural engineer as well as inspectors from both the City of Irvine and County of Orange. Special inspections included reinforced concrete, post-tensioned concrete and structural steel welding.

Related Services

  • Geotechnical Engineering & Engineering Geology
  • Pavement Engineering
  • Structural Engineering and Civil Engineering
  • Forensic Engineering and Expert Witness
  • Soils, Materials Testing and Inspection
  • Construction Management and Monitoring
  • Additional Services
  • Stormwater QSP
  • Geotechnical Instrumentation
  • Construction Vibration/ Blast Consulting
  • Laboratory Testing
  • Special Inspection
  • Grading Support

General Contact

GMU Geotechnical, Inc.
23241 Arroyo Vista
Rancho Santa Margarita, CA 92688
P:949.888.6513
F:949.888.1380

People Contacts

Principals
Greg Silver | M.S., PE, GE
President/Principal Engineer
949.633.0617

Gary Urban | PE, GE
CEO/Principal Engineer
949.633.0613

Mike Moscrop | M.S., PE, GE
Vice President/Principal Engineer
949.463.4296

Aron Taylor | M.S., PG, CEG
Vice President/Principal Geologist
949.510.7503

Directors
Bob Mutchnick
Director of Engineering Seismological Services
949.289.6817


Ali Bastani
Director of Geotechnical Engineering
949.232.8984


Roger Schlierkamp
Director of Pavement Engineering
949.300.2158


Dave Atkinson
Director of Commercial Development
949.633.0618

Senior Staff
Lisa Bates
Associate Engineering Geologist
714.329.3746


Dave Hansen
Senior Geotechnical Engineer
949.433.8850


Katie Farrington
Project Geologist
949.235.6723


Ryan Douglas
Staff Engineer
949.394.5641


Matt Farrington
Staff Engineer
951.551.1556


Rob Howell
Staff Engineer
949.289.3158


Jessy Meza
Design Engineer/CAD
626.614.4063


John Villarraga
Laboratory Manager
Norm Biehn
Special Inspection Manager/Senior Special Inspector
951.741.2937


Administration
Jenni Neff
Office Manager

Marianne Brown
Accounting Manager

Cynthia Balo
Human Resource Manager

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23241 Arroyo Vista Rancho Santa Margarita CA 92688 | USA 949.888.6513 | Map

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GMU Project at Crown Valley Community Park Celebrates Completion August 24, 2017 | Read More

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Soil Nail Wall Under Construction – Spectrum Center Drive, Irvine

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