Soil and Rock Logging Manual

Request documents that are not currently available by emailing: GS@dot.ca.gov

 

Current Version of the Manual:

  • Soil and Rock Logging, Classification, and Presentation Manual (2010 Edition)
  • Errata Sheet (August 2018)
  • SPT Hammer Efficiency Summary (May 2018)
 

LOTB Legend and Border Sheets:

  • 2010 LOTB Legends and Border sheet (.pdf)
  • 2010 LOTB Soil Legend Sheet 1 of 2 (.dgn)
  • 2010 LOTB Soil Legend Sheet 2 of 2 (.dgn)
  • 2010 LOTB Rock Legend Sheet (.dgn)
  • 2010 LOTB Border Sheet (.dgn)