MMA Trenching and Excavation Inspection
by John Bestman, CSP, from the Community
Minnesota-specific trenching and excavation inspection checklist from Marsh and McLennan Agency to support safe excavation work and MNOSHA compliance. Covers PPE, 811 utility locate process, verification of locate tickets and markings, excavation dimensions, protective systems (sloping, benching, shoring, trench box), spoil setbacks and access, ladders and egress, traffic control, site hazards, and protection from loose rock and soil. Includes controls for wet conditions and hazardous atmospheres with testing and emergency equipment. Addresses emergency response readiness, public safety protections, and MNOSHA 5207.1000 training requirements. Provides silica control guidance aligned with OSHA Table 1 and prompts for documentation, best practices, and safety meetings.
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