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Case study · MSHA Record #219990390001
Mine Manager fatality
January 27, 1999 at 11:40 AM
KEYSTONE CEMENT COMPANY
· Keystone Cement Company
· Northampton County, PA
Investigator narrative
IN THE PROCESS OF CLEANING THE SILO, CONTRACTOR'S SUPERVISOR ENTERED THE SILO. A LEDGE OF HARDENED CEMENT ON WHICH HE WAS STANDING GAVE WAY CAUSING HIM TO FALL TO THE BOTTOM OF THE SILO. A RES ULTING AVALANCHE OF CEMENT CASCADED DOWN UPON HIM AND BURIED HIM.
Record details
- Classification
- HANDLING OF MATERIALS
- Accident type
- Struck by falling object
- Activity at time
- Cement Work, Gunite Crew
- Subunit / location
- MILL OPERATION/PREPARATION PLANT
- Source of injury
- CEMENT PROD,CONCRET BLOCK
- Nature of injury
- MULTIPLE INJURIES
- Body part affected
- MULTIPLE PARTS (MORE THAN ONE MAJOR)
- Total mining experience
- 10 years
- Experience at this mine
- 10 years
- Experience in this job
- 10 years
- Mine type
- Facility
- Sector
- Metal/Non-Metal
Similar incidents in MSHA records
· same classification: HANDLING OF MATERIALS
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September 3, 2026 · KG Mining (Bald Mountain) Inc. · NV · Welder (Non-Shop)
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November 22, 2025 · United Salt Carlsbad LLC · NM · Dryer Operator
The employee was pressure washing silo #6 and was found with their head and right arm in the silo with salt buildup on their head and right arm. The employee was pronounced dead at the scene.