Geotechnical Manual
The Geotechnical Manual documents the Department's standards of practice for geotechnical investigations, design, and reporting.
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Table of Contents
| Section | Implementation Date | Revision Log |
|---|---|---|
| Introduction (PDF) | January 2020 |
|
| Reporting Standards | ||
| Foundation Reports for Bridges (PDF) | August 2018 | |
| Foundation Reports for Earth Retaining Systems |
June 2017 | |
| Foundation Reports for Buildings |
January 2020 |
|
| Geotechnical Design Reports |
January 2020 |
|
| Investigations | ||
| Geotechnical Investigations (PDF) | July 2017 | |
| Soil and Rock Logging |
September 2019 |
|
| Borehole Location (PDF) |
March 2012 | |
| Standard Plan Designs (PDF) | November 2010 | |
| Soil Correlations (PDF) |
March 2014 | |
| Design | ||
| Standard Plan Designs |
November 2010 |
|
| Sound Walls | July 2010 | |
| Standard Plan Overhead and Changeable Message Signs (PDF) | October 2014 | |
| Seismic | ||
| Liquefaction Evaluation | January 2020 |
|
| Fault Rupture (PDF) | January 2017 | |
| Lateral Spreading (Example) |
January 2020 |
|
| Earth Retaining Systems |
||
| Conventional Retaining Walls (PDF) |
April 2016 | |
| Mechanically Stabilized Embankments (Caltrans Pre-Designed) (PDF) | June 2017 | |
| Mechanically Stabilized Embankments (Non-Standard Design) |
January 2020 |
|
| Soil Nail Walls | January 2020 | |
| Non-Gravity Cantilever Retaining Walls |
January 2020 |
|
| Ground Anchor Retaining Walls |
January 2020 |
|
| Seismic Design of Retaining Walls |
January 2020 | |
| Structure Foundations |
||
| Driven Pile Foundations |
June 2017 | |
| Cast-In-Drilled-Hole (CIDH) Pile Foundations | June 2017 | |
| Design Data Documentation and Geotechnical Evaluation of Anomalous CIDH Concrete Piles | December 2014 | |
| Downdrag |
January 2020 |
|
| Micropiles | January 2020 | |
| Vertical Ground Anchors | January 2020 | |
| Earthwork | ||
| Embankments (PDF) | December 2014 | |
| Landslides | January 2020 |
|
| Soil Cut Slopes |
January 2020 | |
| Rock Cut Slopes (PDF) |
June 2013 | |
| Rockfall | July 2014 | |
| Ground Improvement (PDF) | October 2014 | |
| Geosynthetics (PDF) | June 2013 | |
| Emergency Response |
January 2020 |
|
Forms and Templates
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Seismic Design Data Sheet – ARS Online V2
-
Seismic Design Data Sheet – ARS Online V3