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Yogi Kwong Engineers, LLC

Always Digging Deeper

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About the firm

Yogi Kwong Engineers, LLC (YKE) is a Hawaii-based geotechnical engineering and construction management organization founded in April 2005 by David R. Yogi, Jr., P.E. and James K.P. Kwong, Ph.D., P.E. YKE has completed over 400 projects totaling nearly $7 billion in construction cost, including trenchless pipeline projects, dam rehabilitation, landslide mitigation, and large infrastructure work. YKE operates an AASHTO-accredited soils testing laboratory validated by the U.S. Army Corps of Engineers. Its drilling subsidiary, YK Drilling, LLC, provides geotechnical, environmental, and water well drilling services throughout Hawaii and the Pacific.

Established
2005
Firm type
Geotechnical Engineering

Credentials

AASHTO Accredited Soils Testing Laboratory · U.S. Army Corps of Engineers Validated Laboratory

People

David R. Yogi, Jr.Co-Founder

James K.P. KwongCo-Founder

Capabilities

Geotechnical Engineering

Service website

Comprehensive subsurface investigation, analysis, and hazard mitigation for major infrastructure, buildings, and specialized civil works.

  • Trenchless Engineering

    Redefining possibilities in state-of-the-art trenchless pipeline, tunnel, and crossing design and analysis.

  • Dam Rehabilitation

    Geotechnical investigation, stability analysis, and repair design for dams.

  • Landslide Mitigation

    Slope stability analysis, landslide investigation, and emergency mitigation planning.

  • Engineering Geology

    Subsurface characterization and geologic hazard investigations to support structural design and risk management.

Construction Management

Service website

Professional construction engineering and management services for public works, utility, and infrastructure projects.

  • Resident Engineering

    On-site engineering oversight and representation during construction phases.

  • Construction Inspection

    Quality control, site observation, and contract compliance monitoring for infrastructure works.

Soils & Rock Testing

Service website

AASHTO-accredited and U.S. Army Corps of Engineers-validated laboratory services providing rigorous testing of geological materials.

  • Sieve Analysis
  • Atterberg Limits
  • Triaxial Compression (TXUU and TXCU)

    Unconsolidated-Undrained (TXUU) and Consolidated-Undrained (TXCU) testing for material shear strength analysis.

  • Direct Shear Test
  • Consolidation
  • Hydraulic Conductivity

Drilling Services

Service website

Specialized land and difficult-access exploration, sampling, and monitoring installations provided through YK Drilling, LLC.

  • Geotechnical Drilling
  • Environmental Drilling
  • Water Well Drilling
  • Diamond Core Drilling
  • Pavement and Concrete Coring
  • Cone Penetration Testing
  • Groundwater Monitoring Well Installation
  • In-Hole Permeability Testing

Industries

Infrastructure · Water Supply · Wastewater · Transportation · Government

Projects

Yogi Kwong Engineers, LLC - Engineering Firms