Skip to main content.

A-Z Index

Covid-19 ESH

ESH Forms

ESH Manual

Medical - OHC

SLAC Security

Emergency Status

ESH Contacts

ESH Concerns - DPO

ESH Depts

ESH SharePoint

SLAC Training

ESH Manual

Chapter 11: Excavation Safety

The purpose of this program is to ensure that excavations are conducted in a safe manner and in compliance with applicable regulations. This program applies if an excavation meets any of the following conditions, at any time:

  1. Depth is one foot or more
  2. Power tools will be used
  3. Utilities are identified
  4. Any hazardous condition is likely to be encountered

The following excavation types are exempt from the requirements of this program:

  1. Replacing existing sign posts in and around SLAC roads, parking areas, and pathways, provided sleeves are used
  2. Sampling soil, concrete, and asphalt from bins, hoppers, or stockpiles using hand tools

The program covers planning and performing excavations, including approving and closing out excavation permits, locating utilities, updating as-built drawings, and ensuring that all physical and recordkeeping requirements are met.

It applies to workers, supervisors, competent persons, utility locators, project and field construction managers, the Facilities and Operations facilities engineer and division director, the excavation safety program manager, and subcontractors, Safety Services, Waste Management, Radiation Protection, and Environmental Protection.

Quick Start Summary [pdf]

Full Chapter [pdf]

Procedures and Requirements

Forms and Tools

Other Program Documents and Resources

  • None

Program Ownership

Department: Construction Safety Services
Program Manager: Greg W. Johnson

Additional Contacts

Program SLAC-Internal page

Competent and Qualified Persons and Engineers SLAC-Internal page

Last update: