Construction Inspection


Green Line Light Rail Extension

The Sacramento Regional Transit District’s Green Line to the River District project is the initial segment extending light rail services to the Sacramento International Airpor More»


California State University,
San Marcos

Geocon has provided construction inspection, geotechnical engineering, and environmental services on over 40 campus projects including buildings, infrastructure, and sports complexes More»

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To confirm compliance with our engineering recommendations, we are commonly retained to perform testing and inspection services during construction. Our field technicians and inspectors maintain current certifications including ICC, NICET, ACI, and Caltrans.

Our laboratories maintain current accreditations including:

•     CCRL
•     DSA
•     USACE
•     Caltrans

Testing on soil, aggregate, asphalt concrete, and Portland cement concrete is performed in accordance with published test procedures such as ASTM, Caltrans, USACE, AASHTO or the governing building code. We typically provide construction inspection 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
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

Special Inspection

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
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
Steel Reinforcing

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