For more than 70 years, CTL’s Geotechnical Department has been providing professional geotechnical consulting, engineering and testing services. This department is staffed with highly qualified professional geotechnical engineers, geologists and technicians with more than 120 years of combined experience. This professional staff, in conjunction with our in-house drilling and material testing support, enables CTL to provide our clients with accurate, reliable and complete subsurface evaluations and recommendations.

Professional Services
Monitoring Well
Percolation Tests
Laboratory Services
Slope Stability Analysis
Concrete and Asphalt Coring
Rock Coring and Classification
Piezometer, and Inclinometer Installation
Pavement Design & Failure Investigations
Pile and Caisson Analysis and Inspection
Soil Sampling, Classification, and Testing
Temporary and Permanent Earth Retention
Foundation Bearing Capacity and Settlement


Project Types
Parking Lots and Roadways
Embankments and Earth Dams
Bridges, Culverts, and Roadways
Low-Rise and High-Rise Buildings
Silos, Water and Telecommunication Towers