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MSHA Hazard Alert - Think Quicksand

Lapse in Appropriations

For workplace safety and health, please call 800-321-6742; for mine safety and health, please call 800-746-1553; for Job Corps, please call 800-733-5627 and for Wage and Hour, please call 1-866-487-9243 (1 866-4-US-WAGE).  This website is currently not being updated due to the suspension of Federal government services. The last update to the site was 10/1/2025.  Updates to the site will start again when the Federal government resumes operations.

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A front end loader operator was loading sand into the feed hopper. He dismounted from the cab to retrieve two 55-gallon drum lids from the hopper, when he fell into the hopper and became engulfed by the sand.

Mine operators should equip feed hoppers with mechanical devices, grates/grizzlies or other effective means of handling material so that persons are not required to work where they are exposed to entrapment by sliding material. This short video, Quicksandillustrates engulfment hazards.

MSHA standards 30 CFR §§56/57.16002(b) address bins, hoppers, silos, tanks and surge piles. They state, “Where persons are required to move around or over any facility listed in this standard, suitable walkways or passageways shall be provided.” 30 CFR §§ 56/57.16002(c) require a safety belt or harness equipped with a lifeline suitably fastened.

Mine operators must always comply with the following additional standards:

Best Practices
  • Signs that warn, “CONFINED SPACE, ENGULFMENT HAZARD”, should be posted at all access points to hoppers, bins, silos, tanks and surge piles.
  • Mobile or stationary platforms from which miners may work should be made available at locations where there is risk of being engulfed by sliding material.
  • Assign a safety harness and lanyard to each individual miner who may work at an elevated height, or who may work on or near locations where an engulfment hazard exists.
  • Construct stable, durable and secure anchor points to which miners can attach a fall protection lanyard at all locations where an engulfment hazard exists, and inspect these anchor points frequently. Post signage, “FALL PROTECTION IS REQUIRED HERE”.