Construction Inspection

To confirm compliance with our engineering recommendations, we are commonly retained to provide quality assurance testing services during construction. We also provide a full range of special inspection services. Our field technicians and inspectors maintain current certifications including International Code Council (ICC), National Institute for Certification in Engineering Technologies (NICET), American Concrete Institute (ACI), and Caltrans.

Our laboratories maintain current accreditations including American Association of State Highway and Transportation Officials (AASHTO) Materials Reference Laboratory (AMRL), Cement and Concrete Reference Laboratory (CCRL), Division of the State Architect (DSA), U.S. Army Corps of Engineers (USACE) and Caltrans. Testing on soil, aggregate, asphalt concrete, and Portland cement concrete is performed in accordance with published test procedures such as American Society for Testing and Materials (ASTM), Caltrans, USACE, AASHTO or the governing building code. In-house quality assurance programs are maintained to provide a professional level of accuracy and reproducibility acceptable to current industry standards. This is accomplished by internal staff training, calibration of appropriate testing apparatus by certified independent agencies, and periodic inspection by outside accredited testing and inspection agencies.

We typically provide construction quality assurance services in the following areas:


  • Site Grading Observation
  • Sloping/Compound Excavations/Shoring
  • Backfill Compaction Testing (Nuclear Gauge and Sand Cone)
  • Underground Utility Installation
  • Subgrade Preparation
  • Chemical Treatment
  • Geotextile/Rock Stabilization
  • Base and Paving Placement
  • Percolation Testing
  • Instrumentation/Monitoring
  • Rockery Walls


  • Spread Footings/Grade Beam Construction
  • Conventional/Post-Tensioned Mat Foundation Construction
  • Drilled Piers/Shaft Installation
  • Drilled/Driven Pile Installation
  • Micro-Pile Installation
  • Tie-Back Anchor/Soil Nail Installation
  • Proof/Load Testing
  • Stone Columns/Vibrocompaction/Deep Dynamic Compaction
  • Compaction Grouting


  • Reinforcing Steel Placement
  • Shotcrete Placement
  • Concrete Placement/Curing
  • Pre-Stress and Post-Tensioned Concrete
  • High-Strength Bolting
  • Epoxy Anchor Installation
  • Structural Steel Welding
  • Reinforced Masonry Construction
  • Non-Destructive Testing
  • Fireproofing
  • Mechanical Anchors
  • Structural Wood
  • Exterior Insulation and Finish Systems
  • Welder Qualifications
  • Steel and Welding Fabricator Shop Inspections


  • Soil Compaction Curves
  • Soil Index Properties
  • Soil Shear/Compressive Strength Properties
  • Soil Consolidation/Expansion
  • Soil Grain Size Analyses/Gradation
  • Soil Pavement Stability
  • Soil Permeability
  • Soil Corrosion
  • Concrete/Asphalt
  • Masonry/Grout/Mortar
  • Steel Reinforcing


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