Trenching/Excavation
Prerequisites: This course shall have no formal pre-requisite.
Course Length: 4 hours – Course length shall vary depending on the number of delegates. Total course time includes breaks.
Class Size: The maximum number of delegates that may be trained and tested per instructor shall be thirty–five (35) in the classroom session.
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Course Objective
- To provide delegates with the key elements of the worker protections standards in 29 CFR 1926, Subpart P.
- To inform delegates about the dangers associated with excavations including cave-ins and other hazards.
- To prepare delegates to prevent injury or incident using protective systems, personal protection equipment, and safe work procedures.
- Delegates should be able to demonstrate knowledge of excavation safety during written examination.
Course Design
- Power Point© / Lecture / Audio Video / Visual Aids
Successful Course Completion
- Requires a minimum score of 75% or better.
- Grades shall be calculated by dividing the number of questions answered correctly by the total number of exam questions.
- Delegates will have no more than thirty (30) minutes to complete the exam.
Course Content Summary
- Classroom
Breaks: 10 minutes (approximately every hour)
Lunch: 1 hour
Course Outline
Trenching and Excavation Safety
- What is Excavation Work?
- Definitions
- Benching
- Cave-In
- Competent Person
- Excavation
- Hazardous Atmosphere
- Protective System
- Shield
- Shoring
- Sloping
- Surcharge Loads
- Trench
- Undermining
- Vibration
- Introduction
- The Difference Between an Excavation and a Trench
- Dangers of Trenching and Excavation Operations
- OSHA Standards
- Soil Classification
- Stable Rock
- Type A
- Type B
- Type C
- Soil Test and Identification
- Competent Person
- Pre-Planning
- Safety Checklist
- Underground Utility Lines and Pipes
- Protection
- Protective Systems
- Sloping
- Trench Box or Shield
- Cave-Ins
- Additional Considerations
- Installing and Removing Protective Systems
- Materials and Equipment
- Additional Hazards and Protections
- Protective Systems
- Site Inspections
- General PPE
- Access and Egress
- Ladder Use
- Struck-By Hazards
- Power and Hand Tool Use
- Water Accumulation
- Welding, Cutting, and Burning
- Hazardous Atmospheres
- Chemical Storage and Use
- Generator Use
- Airborne Contaminants
- Slips, Trips, and Falls
- Heat and Cold Stress
Training Center Provided Material
- Course Materials
Delegate Requirements
- None
Reference Material/Documents
29 CFR 1926, Subpart P
- Course ID #: MA120