Soil and Rock Logging Manual, Classification, and Presentation Manual
Current Version of the Manual:
Previous Version of the Manual:
- Soil and Rock Logging, Classification, and Presentation Manual (June 2007) and Errata Sheet
- Soil & Rock Logging, Classification Manual, Field Guide (August 1996)
Procedural Documents:
- 2010 Manual Implementation
- 2007 Manual Implementation
- Quality Control/Quality Assurance
- Quality Checklist and Signature Form
- Committee Charter and Standard Procedures
LOTB Legend and Border Sheets:
- 2010 Edition
- 2007 Edition
- Consultants
Revisions to the Manual:
Staff must post requests for modifications on the Caltrans Geotechnical Services Discussion Board.
The request for modification must include at least the following information:
- Name of requestor
- Office
- Manual Section Number
- Description of Proposed Change
- Discussion of Reason or Need for the Proposed Change
External partners may propose modifications by contacting Tom Whitman, Committee Chair, at (510) 286-4848.
Caltrans SPT Hammer Energy Ratios (ERi):
- SPT Hammer Efficiency Summary (April 2013)
- SPT Hammer Efficiency Summary (February 2012)
- SPT Hammer Efficiency Summary (July 2011)
- SPT Hammer Efficiency Summary (May 2011)
- SPT Hammer Efficiency Summary (February 2010)
- SPT Hammer Efficiency Summary (December 2009)
- SPT Hammer Efficiency Summary (August 2008)
Software Resources:
For users of gINT version 8 or higher, the library and template files based upon the current Soil and Rock Logging, Classification, and Presentation Manual can be downloaded here.