The Office of Geotechnical Support serves the Geotechnical Design Offices, Structure Design, and Structure Construction through specialized engineering geologic services, field instrumentation, pile testing, compiling and distributing standards of geotechnical practice, Geotechnical training, and laboratory testing of soil and rock samples.

BRANCH CHIEFS

SENIOR SPECIALISTS

The Foundation Testing Branch

The Foundation Testing Branch (FT) provides statewide foundation testing services for Structure Construction projects. Services offered by the branch include:

Static load tests for compression, tension, and lateral capacities of piles Pile Dynamic Analyses Nondestructive testing of cast-in-drill-hole (CIDH) piles (Gamma-Gamma and Crosshole Sonic Logging) CIDH Pile Mitigation Review Pile drivability studies Field acceptance criteria by wave equation analysis Sonic Caliper Testing Vibration Monitoring

The Foundation Testing Web Page is Available Here

The Geotechnical Instrumentation Branch

The Geotechnical Instrumentation Branch (GI) provides specialized geotechnical instrumentation and testing services. Capabilities of the branch include:

• Slope Inclinometer Testing
• Cone penetrometer Testing
• Automated landslide monitoring stations
• Nuclear gage calibration services and radiation safety administration
• Settlement platforms
• Pressuremeter and vane shear testing

The Geotechnical Instrumentation Web Page is Available Here

The Geotechnical Laboratory

The Geotechnical Laboratory is an AASHTO Materials Reference Laboratory (AMRL) accredited facility located at the Transportation Laboratory in Sacramento. The Geotechnical Laboratory is responsible for performing geotechnical testing of soil samples for Geotechnical Services.

The Geotechnical Laboratory Web Page is Available Here

Contracts, Graphics, and Records Branch

The Contracts, Graphics, and Records Branch oversees all consultant geotechnical contracts, produces geotechnically related drafting products, and maintains Geotechnical Services historical records.

The Contracts, Graphics, and Records Web Page is Available Here

Geophysics and Geology Branch

The Geophysics and Geology Branch assists the Geotechnical Design offices with geologic data and recommendations using advanced geophysical testing methods.

A number of techniques are available for possible application to your project.

For More Information:
The Geophysics and Geology Web Page is Available Here

Training, Specifications, and Legislation

The Senior Materials and Research Engineer (Specialist) for Training, Specifications, and Legislation:

• Coordinates training on geotechnical procedures and methods.
• Analyzes legislature bills that might affect Geotechnical Services.
• Participates in new product evaluation process.
• Maintains geotechnical non-standard special provisions.

Scour Critical

The Scour Critical Program provides geological input and geotechnical analysis to Structure maintenance and Investigations Office of Hydraulics and Hydrology for bridges susceptible to scour. Our services include: Interpret Log of Test Borings and perform site visits to evaluate the threat of scour Perform detailed calculations for bridge foundations impacted by scour Provide mitigation options for scour critical bridges Recommend retrofit solutions for scour damaged bridges

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Last Updated May 26, 2005

For Questions or Comments regarding this Web Page,
Contact Brian Liebich