Welcome to the State of California
caltrans
Soil and Rock Logging, Classification, and Presentation Manual
Download the current version of the manual: Download a previous version of the manual:

Procedural Documents:

LOTB Legend and Border Sheets:

Revisions to the Manual

Staff shall post requests for modifications on the Caltrans Geotechnical Services Discussion
Board, Soil & Rock Logging, Classification and Presentation Manual Category located at:

http://cap1.dot.ca.gov/forum/GeotechnicalServices/index.php

The request for modification shall include at least the following information:

External partners may propose modifications by contacting Tom Whitman, Committee Chair, at (510) 286-4848.


Download current Caltrans SPT Hammer Energy Ratios (ERi) 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.