Migna Safety Solutions

Construction · Self-Paced · about 65 min total

Excavation & Trenching Safety

Intermediate · Course MIG-CON-203

Soil classification, protective systems, and daily inspections under 29 CFR 1926 Subpart P.

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This is a Migna Safety Solutions course with a Migna certificate of completion. It is not OSHA Outreach Training and does not include a Department of Labor card.

A cubic yard of soil weighs as much as a pickup truck, and trench collapses are almost always fatal to whoever they bury. This course covers the physics of a cave-in and the warning signs, soil classification by visual and manual test, all three families of protective system with their configuration limits, access and egress, the competent person's authority and daily inspection duties, underground utilities, water, hazardous atmospheres, adjacent structures, mobile equipment, and emergency response. Supports — but does not by itself confer — a competent person designation, which the employer makes based on training, experience, and authority. Issues a Migna certificate of completion.

What you are buying

45 min
Enforced seat time
2
Modules
13
Lessons
3
Interactive exercises
34
Quiz questions

Seat time is enforced on our servers. The clock is calculated from signed progress events rather than in your browser, so it cannot be sped up — a certificate that states 45 minutes of training means it. The 63 minutes shown above is that gate plus the quizzes and final exam, which are not on the clock.

This certificate does not expire on a clock

The standard behind this course sets no fixed retraining interval, so we do not print one. Retraining is triggered by events instead — a new hazard, a changed process, or an observed deficiency. Your employer or insurer may set their own interval, which is a real obligation but not a federal one.

Written against 24 published standards

Every citation below appears in the course content and is checked against the current text of the rule before publication.

  • 1910.146
  • 1926 Subpart AA
  • 1926.650(b)
  • 1926.651(a)
  • 1926.651(b)
  • 1926.651(c)
  • 1926.651(c)(2)
  • 1926.651(d)
  • 1926.651(e)
  • 1926.651(f)
  • 1926.651(g)
  • 1926.651(h)
  • 1926.651(i)
  • 1926.651(j)
  • 1926.651(j)(1)
  • 1926.651(j)(2)
  • 1926.651(k)
  • 1926.652
  • 1926.652(a)(1)
  • 1926.652(b)
  • 1926.652(e)(1)
  • 1926.652(g)
  • 1926.652(g)(2)
  • Subpart P

What You Will Be Able To Do

The course is built to reach these, and the quizzes are written to confirm them.

  • Describe how a trench collapse occurs and state the depth at which a protective system is required
  • Distinguish the four soil classifications in Appendix A of 29 CFR 1926 Subpart P and the conditions that disqualify Type A
  • Select sloping, benching, shoring or shielding against the soil classification and the depth of the excavation
  • Describe the daily inspection the competent person performs and the conditions that require workers to be removed
  • Identify the excavation hazards other than cave-in, including utilities, atmosphere, water and access

What's Covered

  1. Module 1: The Hazard, the Soil & the Protective Systems

    • Why Trenches Kill, and the Rules That Follow
    • Soil Classification
    • Slope It, Shore It, or Shield It

  2. Module 2: Inspections, Utilities & Other Excavation Hazards

    • The Competent Person's Authority and Daily Duties
    • Utilities, Atmospheres, and Emergency Response