Trenching and Shoring Manual

Chapter Title Issue Date

 1

Legal Requirements (PDF)

July 2025

 2 Cal/OSHA Overview (PDF) July 2025
 3 Soils (PDF) July 2025
 4 Earth Pressure Theory and Application (PDF) July 2025
 5 Surcharges (PDF) July 2025 
 6 Structural Design of Shoring Systems (PDF) July 2025
 7 Unrestrained Shoring Systems (PDF) July 2025
 8 Restrained Shoring Systems (PDF)  
 9 Railroads (PDF) July 2025
10  Special Conditions (PDF) July 2025 
11  Construction Considerations and Final Summary (PDF) July 2025 
Appendix Title Issue Date
A California Occupational Safety and Health Standards for Excavations  
B Example Problems  
C Surcharges - Tabular Values  
D Sheet Piles  
  Nomenclature  
  List of Tables  
  List of Figures  
  List of Examples